* {
  margin: 0;
  padding: 0;
}
input {
  outline: none;
}
li {
  list-style: none;
}

.todo-container {
  width: 500px;
  height: 600px;
  margin: 50px auto 0;
  background-color: #cbcecb;
  box-sizing: border-box;
}

/* 头部区域 */
.header-box {
  height: 70px;
  line-height: 70px;
  color: #ffffff;
  background-color: #2f322f;
  padding-left: 20px;
}
.header-box input {
  width: 220px;
  height: 30px;
  margin-left: 155px;
  padding-left: 10px;
  border-radius: 5px;
  box-sizing: border-box;
}

/* 内容区域 */
.content-box {
  padding: 0 20px;
}
.content-box h2 {
  position: relative;
  margin: 15px 0;
}
.content-box h2 #todoCount,
.content-box h2 #doneCount {
  position: absolute;
  top: 7px;
  right: 10px;
  width: 20px;
  height: 20px;
  line-height: 20px;
  text-align: center;
  background-color: #e7e6fb;
  font-size: 14px;
  font-weight: 400;
  border-radius: 10px;
}
/* 正在进行 */
ol li {
  height: 25px;
  line-height: 25px;
  background-color: #fff;
  margin-bottom: 10px;
  border-radius: 3px;
}
ol li > input {
  margin-left: 15px;
  margin-right: 10px;
}
ol li > span {
  display: inline-block;
  width: 385px;
}
ol li > img {
  width: 20px;
  vertical-align: text-bottom;
}
ol li > img:hover {
  cursor: pointer;
}
/* 已经完成 */
ul li {
  height: 25px;
  line-height: 25px;
  background-color: #e4e6e3;
  margin-bottom: 10px;
  border-radius: 3px;
}
ul li > input {
  margin-left: 15px;
  margin-right: 10px;
}
ul li > span {
  display: inline-block;
  width: 385px;
}
ul li > img {
  width: 20px;
  vertical-align: text-bottom;
}
ul li > img:hover {
  cursor: pointer;
}

/* 底部区域 */
.footer-box {
  text-align: center;
  margin-top: 20px;
}
